ACS730 datasheet(5/18 Pages) ALLEGRO

5 / 18 page

1 MHz Bandwidth, Galvanically Isolated Current Sensor IC

in Small Footprint SOIC8 Package

ACS730

Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

xKLCTR-20AB PERFORMANCE CHARACTERISTICS

: Valid over full range of TA, VCC= 5 V, unless otherwise specified

Characteristic

Symbol

Test Conditions

Min.

Typ.1

Max.

Unit

NOMINAL PERFORMANCE

Current Sensing Range

IPR

–20

–

Sensitivity

Sens

–

100

–

mV/A

Zero Current Output Voltage

VIOUT(Q)

IP = 0 A, TA = 25°C

–

2.5

–

ACCURACY PERFORMANCE

Total Output Error2

ETOT

IP = 20 A; TA = 25°C to 125°C

–4

±3

IP = 20 A; TA = –40°C to 25°C

–

±4

–

Sensitivity Error

Esens

IP = 20 A; TA = 25°C to 125°C

–2.5

±1.5

2.5

IP = 20 A; TA = –40°C to 25°C

–

±4

–

Offset Voltage

VOE

IP = 0 A; TA = 25°C to 125°C

–75

±50

IP = 0 A; TA = –40°C to 25°C

–

±50

–

Nonlinearity

ELIN

IP within IPOA, TA = 25°C to 125°C

–2

±0.75

IP within IPOA, TA = –40°C to 25°C

–

±0.75

–

LIFETIME DRIFT CHARACTERISTICS

Total Output Error Lifetime Drift

Etot_drift

IP = 20 A

–

±1.5

–

Sensitivity Error Lifetime Drift

Esens_drift IP = 20 A

–

±1

–

Offset Voltage Lifetime Drift

Voff_drift

IP = 0 A

–

±20

–

Typical values with ± are 3 sigma values, except for Lifetime Drift which are mean values.

Percentage of IP, output filtered.

xKLCTR-40AB PERFORMANCE CHARACTERISTICS

: Valid over full range of TA, VCC= 5 V, unless otherwise specified

Characteristic

Symbol

Test Conditions

Min.

Typ.1

Max.

Unit

NOMINAL PERFORMANCE

Current Sensing Range

IPR

–40

–

Sensitivity

Sens

–

mV/A

Zero Current Output Voltage

VIOUT(Q)

IP = 0 A, TA = 25°C

–

2.5

–

ACCURACY PERFORMANCE

Total Output Error2

ETOT

IP = 20 A; TA = 25°C to 125°C

–4

±3

IP = 20 A; TA = –40°C to 25°C

–

±4.5

–

IP = 40 A; TA = 25°C to 125°C

–5

±3

IP = 40 A; TA = –40°C to 25°C

–

±5

–

Sensitivity Error

Esens

IP = 20 A; TA = 25°C to 125°C

–2.5

±2

2.5

IP = 20 A; TA = –40°C to 25°C

–

±3.5

–

IP = 40 A; TA = 25°C to 125°C

–3.5

±2.5

3.5

IP = 40 A; TA = –40°C to 25°C

–

±5

–

Offset Voltage

VOE

IP = 0 A; TA = 25°C to 125°C

–40

±20

IP = 0 A; TA = –40°C to 25°C

–

±30

–

Nonlinearity

ELIN

IP within IPOA, TA = 25°C to 125°C

–2

±0.75

IP within IPOA, TA = –40°C to 25°C

–

±0.75

–

LIFETIME DRIFT CHARACTERISTICS

Total Output Error Lifetime Drift

Etot_drift

IP = 40 A

–

±1.5

–

Sensitivity Error Lifetime Drift

Esens_drift IP = 20 A

–

±1

–

Offset Voltage Lifetime Drift

Voff_drift

IP = 0 A

–

±20

–

Typical values with ± are 3 sigma values, except for Lifetime Drift which are mean values.

Percentage of IP, output filtered.

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